Global crude oil prices fell between 19% [1] and 20% [2] in May, marking the steepest monthly decline since 2020.
This sharp downturn reflects a significant shift in market sentiment. Investors are pricing in the possibility of a diplomatic resolution between the U.S. and Iran, which would likely reduce the risk premiums currently inflating energy costs.
The decline affected both the Brent European benchmark and the U.S. WTI crude. During the month, WTI crude hovered around $87 per barrel [1]. The volatility comes as traders anticipate smoother oil flows and a reduction in geopolitical tensions that typically constrain global supply.
President Donald Trump indicated that a final decision regarding a diplomatic agreement is imminent. "I will meet in the White House Situation Room to make a final decision about a deal with Iran," Trump said [3].
Market analysts said that the anticipation of a cease-fire or peace deal has led traders to sell off contracts. This movement indicates a belief that the perceived threat of supply disruptions in the Middle East is diminishing. The rapid price correction follows a period of high tension, making the current slide the most dramatic monthly loss for the commodity in six years [1], [2].
While the exact percentage of the slide varies slightly by benchmark, the overall trend shows a synchronized move across global markets [1], [2]. The potential for a formalized deal continues to weigh on prices as the White House moves toward a conclusion in the Situation Room [3].
“Crude oil prices fell between 19% and 20% in May, marking the steepest monthly decline since 2020.”
The precipitous drop in oil prices suggests that the market is shifting from a 'crisis' footing to a 'stability' footing. If a U.S.-Iran deal is finalized, the removal of the geopolitical risk premium could lead to a prolonged period of lower energy costs, potentially easing inflationary pressures globally but creating revenue challenges for oil-exporting nations.
